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Is this code correct?

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jayanth.devarayanadurga

jayanth.devarayanadurga

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Is this code correct? I am using PWM of 38 KHz to generate IR bursts and sending some data. I am attaching mikroC Project files + Proteus file + DSO output. Is the working correct. I want to make it sure so that I can implement it using PWM and Timer. I am using SIRC Protocal mentioned here. https://www.sbprojects.com/knowledge/ir/sirc.php

97833d1382950326-ir.png
 

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  • mikroC PRO IR.rar
    82.8 KB · Views: 43
  • ir.png
    ir.png
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Hi just looked at the protocol and your DSO output, I am considering long width of bursts are high and small widths are low, The problem in your output is It remains high between some of the output bursts....

ir.png
 

It is because of the last state of the PWM signal. I will try turning of the CCP1 pin.

Edit: Fixed. I just added a pull down resistor to CCP1 pin.

97837d1382952753-ir2.png
 

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  • ir2.png
    ir2.png
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